11723988 has 24 divisors (see below), whose sum is σ = 28796320. Its totient is φ = 3702240.

The previous prime is 11723981. The next prime is 11723989. The reversal of 11723988 is 88932711.

11723988 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11723981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25483 + ... + 25938.

Almost surely, 2^11723988 is an apocalyptic number.

It is an amenable number.

11723988 is an abundant number, since it is smaller than the sum of its proper divisors (17072332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11723988 is a wasteful number, since it uses less digits than its factorization.

11723988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51447 (or 51445 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 11723988 is about 3424.0309578040. The cubic root of 11723988 is about 227.1739111170.

The spelling of 11723988 in words is "eleven million, seven hundred twenty-three thousand, nine hundred eighty-eight".